3 在目的数据库中运行建立subscription CREATE SUBSCRIPTION mysub CONNECTION 'host=192.168.198.100 port=5432 user=admin dbname=test' PUBLICATION pub_test with (create_slot = false,slot_name = table_slot); select * from pg_subscription; 通过 pg_subscription 来监控当前数据库中创建的 subscription 此时...
POSTGRES_LOCKS OK: DB 'postgres' (host:/opt/data6000) (port=6000) total=1 | time=0.00s postgres.exclusive=0;;20 postgres.total=1;100;200 template1.exclusive=0;;20 template1.total=0;100;200 [postgres@t1ysl bin]$ check_postgres.pl --action=connection --db=postgres POSTGRES_CONNECTION ...
1 max_replication_slots = 10 复制槽的数量 2 hot_standby = on 3 wal_level = logical 复制中的 wal 等级必须是 logical 4 hot_standby_feedback = on 数据接收端需要进行回馈 5 max_wal_senders = 10 最大的 wal 的发送者 其中3 wal _level 是必须的,否则逻辑复制是无法进行工作的,逻辑复制槽的数...
POSTGRES_LOCKS OK: DB 'postgres' (host:/opt/data6000) (port=6000) total=1 | time=0.00s postgres.exclusive=0;;20 postgres.total=1;100;200 template1.exclusive=0;;20 template1.total=0;100;200 [postgres@t1yslbin]$ check_postgres.pl --action=connection --db=postgres POSTGRES_CONNECTION OK...
Functions can be checked upon execution - plpgsql_check module must be loaded (via postgresql.conf). Configuration Settings plpgsql_check.mode = [ disabled | by_function | fresh_start | every_start ] plpgsql_check.fatal_errors = [ yes | no ] plpgsql_check.show_nonperformance_warnings = fals...
Work_mem also goes hand to hand with the max_connections value, as each connection will be executing these operations at the same time, and each operation will be allowed to use as much memory as specified by this value before it starts to write data in temporary files. This parameter dete...
RDS PostgreSQL 升级数据库大版本 调试 您可以在OpenAPI Explorer中直接运行该接口,免去您计算签名的困扰。运行成功后,OpenAPI Explorer可以自动生成SDK代码示例。 调试 授权信息 下表是API对应的授权信息,可以在RAM权限策略语句的Action元素中使用,用来给RAM用户或RAM角色授予调用此API的权限。具体说明如下: 操作:是指具...
PostgreSQL doesn't have any mechanism to limit the number of authentication failure attempt before the user being banned. With the credcheck extension, after an amount of authentication failure defined by configuration directivecredcheck.max_auth_failurethe user can be banned and never connect anymore...
This health check requires one extra connection to each backend, so max_connections in the postgresql.conf needs to be incremented as needed. You need to reload pgpool.conf if you change this value. 实际的情形如何呢,这里以 pgpool-II 3.1 为例(为了看着方便,去掉了一部分不重要的代码): ...
RDS PostgreSQL 升级数据库大版本 调试 您可以在OpenAPI Explorer中直接运行该接口,免去您计算签名的困扰。运行成功后,OpenAPI Explorer可以自动生成SDK代码示例。 调试 授权信息 下表是API对应的授权信息,可以在RAM权限策略语句的Action元素中使用,用来给RAM用户或RAM角色授予调用此API的权限。具体说明如下: 操作:是指具...